Letters Section Editor: Stephen J. Lurie,
MD, PhD, Senior Editor.
To the Editor: In their analyses of National
Health and Nutrition Examination Survey (NHANES) data and hypertension prevalence,
Drs Hajjar and Kotchen1 examined the possibility
that the increase in age-adjusted hypertension prevalence between 1988-1991
(NHANES I) and 1999-2000 (NHANES III) could be related to the documented increase
in body mass index (BMI). To do so, they used an analysis of covariance to
adjust for age, sex, and race/ethnicity, and reported that BMI "contributed
to 2%—more than half—of the 3.6% increase in hypertension prevalence."
Hyder JA. Factors in the Increasing Prevalence of Hypertension—Reply. JAMA. 2003;290(22):2940. doi:10.1001/jama.290.22.2940-a